[1] : The Collaborative International Dictionary of English v.0.48

fluke \fluke\ fl=uk or fl=ook, n. cf. as. fl=oc a kind
   of flatfish, icel. fl=oki a kind of halibut.
   1. zool. the european flounder. see flounder. written
      also fleuk, flook, and flowk.
      1913 webster

   2. zool. any american flounder of the genus paralichthys,
      especially paralicthys dentatus, found in the atlantic
      ocean and in adjacent bays. --rhud
      pjc

   3. zool. a parasitic trematode worm of several species,
      having a flat, lanceolate body and two suckers. two
      species fasciola hepatica and distoma lanceolatum
      are found in the livers of sheep, and produce the disease
      called rot.
      1913 webster
see also:
flounder fleuk flook flowk paralichthys paralicthys dentatus 
fasciola hepatica distoma lanceolatum 

[2] : WordNet (r) 2.0

fasciola hepatica
     n : flatworm parasitic in liver and bile ducts of domestic
         animals and humans syn: liver fluke
see also:
liver fluke 

Hepatica >> H Words
Hepatica, definition of term: Hepatica
hepatica_pag1.html

Fasciola >> F Words
Fasciola, definition of term: Fasciola
fasciola_pag1.html